As far as the score and healthkit bugs, My plugin does not touch the score at all, any issues you have will be from vanilla L4D or other plugins you have. Depending how you have you server set up, you need to make you are restarting the level after changing mp_gamemode versus and changing this plugin's cvars. The only time I have seen the healthkits at the start is when the cvar to disable all healthkits is not activated. The plugin will try to disable that cvar when the map loads, so once again, make sure you are restarting the map before playing, and you don't have any plugins or configs relating to changing how many medkits there are.
@Chilly: read the known bugs, that will happen if somebody on your team did not grab a set of pills at the beginning.
@quad: I am not intending to create a balanced pub config in any way. I am well aware that with everything enabled this plugin is not suitable for pubs, and I have no intention of balancing it as such, or creating a separate pub version.
@bispoom: All the cvars are in my first post. If you set these 3 cvars only the tankfix and tier 2 disable will be enabled.